Haier 3U19FS1ERA Service Manual - Page 67

Installation for air duct of indoor unit

Page 67 highlights

>_]]VbTZR\ _^UZdZ_^Vb The distance between air duct outlet and air conditioner outlet is according to the length of actually installed air duct and in service behavior of the static pressure terminal: Installation sketch map for long and short air duct is showed below, when connect to short air duct, using low static terminal (terminal color is white), the distance between air duct outlet and air conditioner outlet is no more than 0.5m; when connect to long air duct, using middle static terminal (terminal color is red), the distance between air duct outlet and air conditioner outlet could be within 5m at this point. Figure 5 sling dog drain piping air return duct transition air outlet air return shutter air duct duct joint of air diffuser air diffuser Drain piping of condensed water should keep a downhill grade of 1% or more. Use insulating pipe to cover the drain piping of condensed water to keep warmth. As figure shown, suspend and install the unit. Figure 6 M8 broad foundation bolt M8 suspension screw Unit M8 broad lock ring M8 nut Installation for air duct of indoor unit 1. Installation of air discharge duct This type of unit uses circular air duct with its caliber of 180mm. An additional transitive air duct is necessary for the circular air duct to connect to the air supply inlet. It should be also connected to its respective air diffuser separately. See Fig.1. Adjust the wind speed of each air diffuser outlet to keep in line on the whole, so as to meet a demand of the air conditioner in the room. flexible joint or Indoor unit static pressure box transitive air duct circular air duct joint of air diffuser air diffuser Fig1: Duct connected -66-

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The distance between air duct outlet and air conditioner outlet is according to the length of
actually installed air duct and in service behavior of the static pressure terminal:
Installation
sketch map for long and short air duct is showed below, when connect to short air duct, using
low static terminal (terminal color is white), the distance between air duct outlet and air
conditioner outlet is no more than 0.5m; when connect to long air duct, using middle static
terminal (terminal color is red), the distance between air duct outlet and air conditioner outlet
could be within 5m at this point.
As figure shown, suspend and install the unit.
Drain piping of condensed water should keep a downhill grade of 1% or more. Use insulating
pipe to cover the drain piping of condensed water to keep warmth.
Figure 5
Figure 6
air return shutter
air return duct
sling dog
drain piping
transition
air duct
air outlet
duct
air diffuser
joint of air diffuser
M8 broad foundation bolt
M8 suspension screw
M8 broad lock ring
M8 nut
Unit
Installation for air duct of indoor unit
This type of unit uses circular air duct with its caliber of 180mm.
An additional transitive air duct is necessary for the circular air duct to connect to the air
supply inlet. It should be also connected to its respective air diffuser separately. See Fig.1.
Adjust the wind speed of each air diffuser outlet to keep in line on the whole, so as to meet a
demand of the air conditioner in the room.
1. Installation of air discharge duct
Indoor unit
flexible joint or
static pressure
box
transitive air duct
circular air duct
joint of air diffuser
air diffuser
Fig1: Duct connected
±²³³´µ¶·¸¹ º·µ ±²»¼·½·²»´µ
-66-